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Ti-6Al-7Nb (UNS designation R56700) is an alpha-beta titanium alloy first synthesized in 1977 containing 6% aluminum and 7% niobium. It features high strength and has similar properties as the cytotoxic vanadium containing alloy Ti-6Al-4V. Ti-6Al-7Nb is used as a material for hip prostheses. [1]
The prosthetic implant used in hip replacement consists of three parts: the acetabular cup, the femoral component, and the articular interface. Options exist for different people and indications. The evidence for a number of newer devices is not very good, including: ceramic-on-ceramic bearings, modular femoral necks, and uncemented monoblock ...
Bone cement is considered a reliable anchorage material with its ease of use in clinical practice and particularly because of its proven long survival rate with cemented-in prostheses. Hip and knee registers for artificial joint replacements such as those in Sweden and Norway [2] clearly demonstrate the advantages of cemented-in anchorage.
Eponymous implants and their uses. Austin-Moore prosthesis for fracture of the neck of the femur; Baksi's prosthesis for elbow replacement; Charnley prosthesis for total hip replacement; Condylar blade plate for condylar fractures of the femur; Ender's nail for fixing intertrochanteric fracture
Materials Some ceramic materials commonly used in joint replacement are alumina (Al 2 O 3 ), zirconia (ZrO 2 ), silica (SiO 2 ), hydroxyapatite (Ca 10 (PO 4 ) 6 (OH) 2 ), titanium nitride (TiN), silicon nitride (Si 3 N 4 ).
UHMWPE are also used for reserve parachute closing loops when used with automatic activation devices, where their extremely low coefficient of friction is critical for proper operation in the event of cutter activation. Medical. UHMWPE has a clinical history as a biomaterial for use in hip, knee, and (since the 1980s), for spine implants.
Titanium is used from head to toe in biomedical implants. One can find titanium in neurosurgery, bone conduction hearing aids, false eye implants, spinal fusion cages, pacemakers, toe implants, and shoulder/elbow/hip/knee replacements along with many more.
An osseointegrated implant is a type of implant defined as "an endosteal implant containing pores into which osteoblasts and supporting connective tissue can migrate". Applied to oral implantology, this refers to bone grown right up to the implant surface without interposed soft tissue layer.
The surface of implants that contact the body might be made of a biomedical material such as titanium, silicone, or apatite depending on what is the most functional. In 2018, for example, American Elements developed a nickel alloy powder for 3D printing robust, long-lasting, and biocompatible medical implants. [4]
Vitallium was developed by Albert W. Merrick for the Austenal Laboratories in 1932. Subperiosteal maxillary implant made of Vitallium 1977. In 2016 Norman Sharp, a 91-year-old British man, was recognised as having the world's oldest hip replacement implants.